We're working on this exact headache, and we believe it's a killer app. Plastc can't solve this problem for you - the moment your card is swiped or entered into a merchant form, it's vulnerable to being stolen and can't be solved with a "remote wipe." What's needed is the ability to make payments with multiple numbers. To silo your merchant relationships and restrict how a number can be spent. And to also to deactivate your physical card when you're far away from it. Never go through a painful get-a-new-card procedure again. We're called Final, and we're launching tomorrow. We'd love your thoughts.